I am seeking a code written in structured text per IEC 61131 for a duty cycle protection device. Ultimately, this will be loaded in Modicon Unity, RSlogix, and Schneider’s SoMachine. This code, when loaded into a PLC, will protect a motor from running over its duty cycle. The duty cycle is described as the time a motor is ON divided by the ON-OFF-ON cycle. For example, if the motor is on for 10 minutes and off for 20 minutes before being turned back on, the duty cycle is 33.3%. If the motor is on for 20 minutes and off for 10 minutes before being turned back on, the duty cycle is 66.6%.
The functionality of the sub-routine is described below. Inputs are: Max Duty Cycle (%), Max Run Time , and Motor State (ON/OFF). The outputs from the sub routine are Duty Cycle (of previous cycle) and Motor Run Permissive (Yes/No). If the motor is running and its run time is less than the max run time, the motor run permissive is YES. For instance, if a motor can run for 15 mins, the code would change the permissive from YES to NO if the motor ran for more than 15 minutes. Also, the permissive would not allow motor to run until the duty cycle criteria are fulfilled. For example, if we had a max run time of 20 minutes and a duty cycle of 66.6%, the permissive would remain as NO unit 10 mins after the motor turned off. At that time, the Motor Run Permissive would change to YES.
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Hello. I am expert in PLC/SCADA.
I have reviewed your project. I can do your job well.
I prefer work for fixed price job.
Price: 50 USD
Time: 1-2 days.
Thanks.
ps: I read all your requirements. I found WATER IS WET but I forget about it.
WATER IS WET Dear friend. I am ready to perform this task. I have extensive knowledge in writing software for PLC and SCADA. I have excellent knowledge of programming languages such as LD, ST, FBD. My company is the official representative of Schneider Electric in Ukraine. In my portfolio you can see the finished projects developed for various industries automation. I would be happy to help you in solving your problem. If you can send me a problem and I can specify cost and duration of the task. Thank you very much.
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Hi David here, I hope you will consider me for your project. I will assure you a quality end product at a competitive price. I know you will be swamped with bids so thank you for the time. Hoping to hear from you soon and if you have any queries please do not hesitate to message me and i can talk. thanks
Hey, how is it going today? My name is Michael, I'm a web designer/developer from Boston. I've had a look at your project description and feel that my skills match your requirements perfectly. In fact, I did a very similar project recently which I can share with you. Let me know when you have a minute to discuss.